제출 #127269

#제출 시각아이디문제언어결과실행 시간메모리
127269gaoxam123Art Exhibition (JOI18_art)C++14
100 / 100
970 ms8340 KiB
#include<bits/stdc++.h>
using namespace std;
#define int long long
int n,ans=-1e15,tmp=-1e15,sum=-1e15;
pair<int,int> a[500005];
signed main(){
	cin>>n;for(int i=1;i<=n;i++) cin>>a[i].first>>a[i].second;sort(a+1,a+n+1);
	for(int i=1;i<=n;i++){tmp=max(tmp,a[i].first-sum);sum+=a[i].second;ans=max(ans,sum-a[i].first+tmp);}cout<<ans;
}
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